She tried every exit door she reached, but all of them led out to a concrete staircase that, again, only went up.

There are four concrete staircases you can take to get to the 2nd level, with a divider for people going up and coming down.

The concrete staircase leading down from what had once been the hidden entrance appeared to be the only thing left intact.

You can reach them by concrete staircases that descend from the path.

The second, third, and fourth stories are connected by a monumental concrete staircase.

To replace the same with concrete staircase will take a yearlong job.

To the left was the fire escape, a concrete staircase leading up and down.

And you get to do this: *Ascend a concrete staircase at a 36-degree angle.

He walked along the landing to the concrete staircase that led down to the street.

In less than five minutes, a concrete staircase to the right will lead down to the dock area.